package collectionhomework;

import java.util.ArrayList;
import java.util.List;

public class ListDemo2 {
    public static void main(String[] args) {
        List<String > list=new ArrayList<>();
        list.add("one");
        list.add("two");
        list.add("three");
        list.add("four");
        list.add("five");
        System.out.println("list:"+list);
        list.add(3,"six");
        System.out.println("list:"+list);
        list.add(6,"seven");
        System.out.println("list:"+list);
        String s=list.remove(2);//删除下标为2的元素，并将被删除元素返回给s
        System.out.println("list:"+list);
        System.out.println("s:"+s);
    }
}
